Home / 42,752,809.20-64,129,213.80-38,423,132.40

Finding the Fourth Proportional to 42,752,809.20, 64,129,213.80 and 38,423,132.40

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Solution

The fourth proportional to 42,752,809.20, 64,129,213.80 and 38,423,132.40 is: 57,634,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,752,809.20 : 64,129,213.80 = 38,423,132.40 : x
  2. Step 2: Convert to fraction form
    42,752,809.20/64,129,213.80 = 38,423,132.40/x
  3. Step 3: Cross multiply
    42,752,809.20x = 64,129,213.80 × 38,423,132.40
  4. Step 4: Simplify right side
    42,752,809.20x = 2,464,045,272,545,307
  5. Step 5: Solve for x
    x = 2,464,045,272,545,307/42,752,809.20
  6. Step 6: Final answer
    x = 57,634,698.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.